Watts 9DM2 (W/PRESS) 3/4 - Part of the 9D Series ZA100F-8NH Heavy-Duty Tractor / Deep-Flange Grate

Heavy-Duty Tractor / Deep-Flange Grate — Designed to support traffic while allowing high flow

high volume roof drain features a flashing clamp with an integral gravel stop

Compatibility: For use with ThermalMAX Series Roof Hatches

Frost proof design

No-hub (standard) outlet connection with optional push-on

Watts 9DM2 (W/PRESS) 3/4 - Part of the 9D Series ZA100F-8NH Heavy-Duty Tractor / Deep-Flange GrateThis 3 4 inch dual check valve backflow preventer with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. This valve is designed for continuous pressure non health hazard applications in smaller supply lines, such as laboratory equipment, processing tanks, sterilizers, dairy equipment, and specifically for boiler feed lines. It consists of a bronze body with stainless steel internal